I didn’t know whether you had to have of these or not, if you ____ one, however, I would have given it to you freely.

A. Had to Have
B. Had had to have
C. Had to Had
D. Have to had

Explanation:

In the given sentence, the correct option to fill the blank is “Had to Have.”
The correct answer is option A, “Had to Have.” This option maintains the correct tense and structure of the sentence. It indicates that the speaker was unsure about the necessity of having something, but if the other person had one, the speaker would have given it freely.

• Option B, “Had had to have,” is not the correct answer. The repetition of “had” in this option is unnecessary and grammatically incorrect in the given context.

• Option C, “Had to Had,” is not the correct answer. The word order in this option is incorrect and does not form a grammatically correct structure.

  -Option D, “Have to had,” is not the correct answer. The word order in this option is incorrect and does not form a grammatically correct structure.

Therefore, the correct option is “Had to Have.”